Sean Cassidy is a member of the X-Men.
History[]
Sean Cassidy was born as the heir to the castle and estate of Cassidy Keep, Ireland, as well as a small fortune. After graduating from Trinity College, Dublin, with the degree of Bachelor of Science, Cassidy became a detective at Interpol, the international law enforcement organization. By the time he married Maeve Rourke, Cassidy had risen to the rank of Inspector at Interpol. Although Cassidy had discovered his mutant powers in his adolescence, he kept them secret, even from the rest of Interpol.
However, Cassidy's powers were known to his disreputable cousin, Black Tom, who had discovered that he himself was a superhumanly powerful mutant. Sean and Black Tom had long been rivals, especially over the love of Maeve, before she ultimately married Sean.
Sean was assigned by Interpol to a top-secret mission which required that he stay out of touch with his family for a considerable amount of time. When he left on the mission, Maeve was in her first month of pregnancy, although neither Sean nor Maeve knew it at the time. Their daughter, Theresa, was born during Sean's absence. Shortly after Theresa's birth, Maeve took the infant Theresa with her on a visit to her relatives in Armagh in Northern Ireland. While she was there, Maeve, an innocent bystander, was killed in an IRA (Irish Republican Army) bombing along with a number of other people. No trace of Maeve was found by the authorities and they, and Maeve's relatives who knew of Theresa's existence assumed that Theresa had also been killed in the explosion and never told Sean that Maeve had had a daughter. In fact, however, Black Tom Cassidy had been present at the scene of the explosion and had secretly carried Theresa off with him. Black Tom suspected that Theresa might develop superhuman mutant powers as she grew older, and therefore he intended to raise her secretly so that he might exploit her powers himself.
On returning from his mission, Sean was informed that his wife was dead. At first, Cassidy attempted to escape his despair over this news by throwing himself into his work at Interpol. Eventually, however, the still melancholy Cassidy left Interpol to become a freelance operative and, as time went on, found himself engaged in some criminal activities.
Reflections[]
Sean was trying to find away to break Nicolette and Claudette St. Croix from their cursed form of Penance, when he was summoned by Emma Frost to warn him of looming danger.
Deprivation[]
He was questioning Blink who they captured the previous day after their battle with the New Hellions.
Moving On[]
Appearances[]
- Generation X (vol. 1) #1-2
- Uncanny X-Men #34